20578425

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2063}}^1$

素因数の和:2102

約数の個数: 48

約数和(自身を含む): 40949760

約数和(自身を除く): 20371335

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 2063, 3325, 6189, 9975, 10315, 14441, 30945, 39197, 43323, 51575, 72205, 117591, 154725, 195985, 216615, 274379, 361025, 587955, 823137, 979925, 1083075, 1371895, 2939775, 4115685, 6859475, 20578425]

約数ペア:

[(1, 20578425), (3, 6859475), (5, 4115685), (7, 2939775), (15, 1371895), (19, 1083075), (21, 979925), (25, 823137), (35, 587955), (57, 361025), (75, 274379), (95, 216615), (105, 195985), (133, 154725), (175, 117591), (285, 72205), (399, 51575), (475, 43323), (525, 39197), (665, 30945), (1425, 14441), (1995, 10315), (2063, 9975), (3325, 6189)]